Bacteriological Samples

Collecting Bacteriological Samples
  • Because of shipping delays, always mail the container on Monday or Tuesday. Hand delivering is also acceptable. Labels on the sample should include name, address, phone number, and location. An information sheet with the name, address, and type of test desired should accompany the sample.
  • Collection bottles are available from your local Colorado State University Cooperative Extension Office or local Department of Health. Containers have a chemical that aids in the biological tests, so do not rinse out the container.
  • Take samples from the primary water source, allowing water to flow about five minutes from a faucet on the main line, if available, or as near the water source as possible. The five-minute purging process will help remove any sediment that may have settled into the well casing or pipes and allow the sampling of fresh ground or surface water.